I was at the parts store today for something and I actually found that they had the Prius in the air filter and spark plug books....first time I've been able to see one in a book. Anyways, their top end plugs are the Bosh Platinum Ir Fusion. Anyways heard of these or have any negitive feedback towards them? Thanks in advance.
I tried the Bosch in an older vehicle, it didn't run any better than the much cheaper OEM plugs, and the plugs didn't last any longer
I have tried the Bosch Platinum Plus plugs long time ago and they ran crappy because the plugs have air sealing problem causing air leak from the plug and loosing compression. I believe they have fixed the problem now but I will not go back.
I used Bosch plugs in my Honda minivan, they only lasted about 15k miles. My mechanic said they contributed to a burned out coil and all the plugs needed replaced. I highly recommend NGK plugs.
I have used Bosch plugs for many years now, I love them. My wifes car has standard Bosch plugs in it, still going strong after 50,000km, over double the recommended change interval here. You absolutely must lube the threads with anti seize lube though.
